| Patents for A62B 23 - Filters for breathing-protection purposes (3,172) |
|---|
| 01/07/1997 | US5590646 Emergency safety mask |
| 12/11/1996 | EP0582612B1 Protective respirator's air guidance system and protective respirator |
| 12/11/1996 | CN2242110Y Oxygen generator |
| 12/10/1996 | US5582865 Non-woven filter composite |
| 12/09/1996 | CA2151285A1 Resporatory protector |
| 12/03/1996 | US5579761 Respirator having snap-fit filter cartridge |
| 11/28/1996 | DE19538074C1 Air filter |
| 11/20/1996 | CN2240378Y Nose filter for breathing-protection |
| 11/13/1996 | CN2239827Y Nasal air cleaner |
| 11/06/1996 | EP0584160B1 Filter |
| 10/29/1996 | US5568808 Nose filters |
| 10/16/1996 | CN2237463Y Multifunctional nasal obstruction |
| 10/09/1996 | CN2236860Y Multifunctional nasal sieve |
| 10/08/1996 | US5562092 Firefighter's emergency smoke filter |
| 10/02/1996 | CN2236341Y Rhinobyon style health-care filter |
| 09/19/1996 | WO1996028217A1 Flat-folded personal respiratory protection devices and processes for preparing same |
| 09/19/1996 | WO1996028216A1 Fold flat respirators and processes for preparing same |
| 08/28/1996 | CN1129963A Method of charging electret filter media |
| 08/21/1996 | CN2233264Y Dust-proof and gasproof mask for mouth and nose |
| 08/21/1996 | CN2233263Y Health nasal obstruction |
| 08/01/1996 | WO1996022823A1 Respirator filter system |
| 07/25/1996 | WO1996022128A1 Respirator and filter cartridge |
| 07/25/1996 | WO1996022127A1 Respirator having snap-fit filter cartridge |
| 07/25/1996 | WO1996022126A1 Respirator having a compressible press fit filter element |
| 07/25/1996 | CA2209857A1 Respirator having snap-fit filter cartridge |
| 07/25/1996 | CA2209415A1 Respirator and filter cartridge |
| 07/25/1996 | CA2209246A1 Respirator having a compressible press fit filter element |
| 06/26/1996 | EP0718011A1 Wool filter for dustproof mask and manufacturing method thereof |
| 06/26/1996 | CN1125274A Wool filter for dustproof mask and manufacturing method thereof |
| 06/25/1996 | US5529838 Wool filter for dust-proof mask comprising a nonwoven fabric of random wool fibers and slit film fibers |
| 06/19/1996 | CN2229284Y Disposable nasal air purifying filter |
| 06/11/1996 | US5524616 Method of air filtration for fire fighter emergency smoke inhalation protection |
| 06/05/1996 | EP0714463A1 Method of charging electret filter media |
| 04/18/1996 | WO1996011037A1 A filtering device |
| 03/20/1996 | EP0701477A1 Adsorption filter |
| 03/07/1996 | WO1996006658A1 Method of air filtration for fire fighter emergency smoke inhalation protection |
| 03/07/1996 | WO1996006657A1 Nasal and oral filters |
| 03/07/1996 | CA2198391A1 Process and system for emergency smoke inhalation protection |
| 03/06/1996 | CN2221428Y Nose air-cleaning filter |
| 03/05/1996 | US5496507 Webs of thermoplastic microfibers and water drops for filtration |
| 02/21/1996 | CN2220308Y Air purifier for nose |
| 02/20/1996 | US5492882 Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors in industrial applications |
| 02/20/1996 | US5492551 Air filter assembly |
| 02/07/1996 | CN1116124A Health care purifying device for nasal-cavity |
| 01/24/1996 | CN2218006Y Nasal filtering rhinobyon |
| 01/23/1996 | US5485836 Nose worn air filter |
| 01/17/1996 | CN2217439Y Health-care self-suction filtering type dust-proof nasal respirator |
| 12/27/1995 | CN2215927Y Nose filter |
| 12/26/1995 | US5478377 Filter for a respiratory device |
| 12/14/1995 | WO1995033520A1 Filtration device |
| 12/13/1995 | CN2214827Y Portable fire smoke choke preventing head cover |
| 11/22/1995 | CN2213005Y Oxygen generating bag |
| 11/21/1995 | US5468488 Air purification |
| 11/21/1995 | US5467765 Disposable face mask with multiple liquid resistant layers |
| 11/02/1995 | WO1995028992A1 Disposable nasal band filter |
| 11/02/1995 | EP0679424A1 Air filter assembly |
| 10/31/1995 | US5462049 Intraoral smoke removal device |
| 10/27/1995 | CA2123545A1 Air filter assembly |
| 10/25/1995 | CN2210685Y Air-feeding dust-proof aspirator |
| 10/18/1995 | CN2210009Y Multi-function nose mask |
| 10/18/1995 | CN2210008Y Device for breathing and introducing oxygen |
| 10/17/1995 | USRE35062 Filter element |
| 10/05/1995 | WO1995026219A1 Method of manufacturing flexible sheet filter material designed to keep out toxic substances, and use of the material |
| 10/04/1995 | CN2208951Y Pollution protector for nose |
| 09/20/1995 | CN2207849Y Miniature filter for breathing-protection purpose |
| 08/24/1995 | DE4410920C1 Flexible sheet filter material esp. for protective clothing |
| 08/01/1995 | US5437267 Device for delivering aerosol to the nasal membranes and method of use |
| 07/19/1995 | CN2203616Y Powered air filtering mouth mask |
| 07/18/1995 | US5433192 Breathing mask having a cellulose heat and moisture exchanger formed therein |
| 07/11/1995 | US5431158 Endoscopy breathing mask |
| 07/05/1995 | CN2202553Y Breath purifier used in nasal cavity |
| 06/27/1995 | US5427092 Respirator |
| 06/20/1995 | US5425359 Nose plug structure with filter |
| 06/07/1995 | CN2199801Y Sanitary rhinobyon |
| 06/06/1995 | US5422062 Method of manufacturing deodorizing filter |
| 06/01/1995 | WO1995014498A1 Valved bronchoaspiration device for endotracheal tubes |
| 05/30/1995 | US5419318 Breathing mask |
| 05/23/1995 | US5417205 Air filter for the nose |
| 04/18/1995 | US5406943 To protect the eyes of a wearer |
| 03/29/1995 | EP0614400A4 Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors. |
| 03/29/1995 | CN1100662A Magnetic dust-proof gauze mask |
| 03/23/1995 | WO1995005501A3 Method of charging electret filter media |
| 03/16/1995 | WO1995007034A1 Disposable protective mask |
| 02/28/1995 | US5392773 Respiratory particulate filter |
| 02/28/1995 | US5392465 Mask for use in fire accidents |
| 02/23/1995 | WO1995005501A2 Method of charging electret filter media |
| 02/07/1995 | US5386825 Respiratory breathing filter apparatus and method |
| 01/24/1995 | US5383450 Liquid shield visor for a surgical mask |
| 01/17/1995 | CA1333950C Fire and smoke protective hood |
| 01/05/1995 | WO1995000119A1 Electrostatically charged nasal application product and method |
| 01/05/1995 | CA2165843A1 Electrostatically charged nasal application product and method |
| 12/28/1994 | CN2186086Y Efficient dustproof, anti-germ and gas gauze mask |
| 12/20/1994 | US5374458 Molded, multiple-layer face mask |
| 12/13/1994 | US5372788 Deodorizing filter |
| 11/30/1994 | EP0320505B1 Protective facial mask |
| 11/22/1994 | CA1333122C Nose-worn air filter |
| 11/16/1994 | CN2182652Y Health-care mask with dust-removing, sterilizing and gas defence |
| 10/25/1994 | US5357947 Face mask |
| 10/25/1994 | CA1332716C Filter element |
| 10/13/1994 | WO1994022573A1 Adsorption filter |